Model PH8EFP KCl Filling type pH Sensor - Yokogawa

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2-8< 2. Installation >(6) Screw the protector to fix the sensor to the holder. In this case, remove the protective cap andsecure the protector so that the flange of the sensor compresses the O-ring firmly. about theinstallation method.pH SensorO-ringProtectorF2.9.aiFigure 2.9 Installing Sensor in Submersion Holder(7) Close the waterproof cap, and attach the holder to the arm pipe, flange or cleaner holdercompletely.2.2.3 Installing Sensor in Flow-through HolderTo install the sensor in a flow-through holder, proceed as follows:(1) Connect the sensor cable to the associated instrument. First, remove the sensor fixing nut andpass the sensor cable through the nut.pH SensorSensor Fixing NutFigure 2.10 Preparation for Sensor Cable ConnectionProperly connect the sensor cable by referring to Section 2.3.(2) Mount the liquid junction on the sensor body. Peel off the seal covering the liquid junctionmounting hole in the sensor body. Screw the liquid junction softly into the hole by turning it fortwo or three turns.IM 12B7J1-01E
2. Installation > 2-9(3) If specified, a reserve tank containing 250 ml solution and mounting hardware to hold this tank,or a medium pressure reserve tank are supplied with the PH8EFP pH sensor.Attach the mounting hardware for general purpose reserve tank to a pipe (2-inch). Connect thegeneral purpose reserve tank to the KCl solution supply tube of the sensor. Remove the capfrom the tank and screw the tube connector securely into the tank.When using a medium pressure reserve tank, attach it to a pipe (2-inch) and perform air pipingto supply pressure for reserve tank as shown in Figure 2.11. Connect the KCl supply tube of thesensor to this reserve tank.Maximum Measured SolutionPressure +10 kPaPressure GaugeAir SupplyAir PressureRegulatorTo pH SensorFigure 2.11 Air Piping for Pressurizing Medium Pressure Reserve Tank(4) Supply KCl solution to the sensor.• When a general purpose reserve tank is used.First, mount the reserve tank on the holding hardware with the tube connection part directeddownwards. Using the pin supplied with the tank, make several holes in its top (see Figure 2.3). Standthe sensor upside down at a position lower than the reserve tank as shown in Figure 2.3 so that KClsolution flows from the tank into the sensor. When the KCl solution fills the sensor and overflows fromthe liquid junction mounting hole, securely screw the liquid junction into the mounting hole.• When a reserve tank for medium pressure is used.First, fill the reserve tank with KCl solution*. Loosen the nut on the reserve tank upside and removethe cap — the pressure gauge is mounted — and pour about 250 ml or KCl solution into the tank.Stand the sensor upside down at a position lower than the reserve tank so that solution flows fromthe tank into the sensor. When the KCl solution fills the sensor and overflows from the liquid junctionmounting hole, securely screw the liquid junction into the mounting hole. Remount the cap of thereserve tank. Tighten the nut securely.*: Use 3.3 mol/l KCl solution. If KCl powder (ordered separately) are supplied with the PH8AXaccessories, dissolve one bag (60 g) of KCl powder in pure water to make exactly 250 ml ofsolution.• When a Big-volume reserve tank is used.Fill the reserve tank with a KCl solution. Loosen and remove the top cover on the reserve tank andpour a KCl solution of approximately 500 ml. When loosening or closing the cover, always do so whileholding the reserve tank by hand. When further tightening the fixing nut at the bottom of the reservetank, be careful not to tighten it too tight.IM 12B7J1-01E
Page 1 and 2: User’sManualModel PH8EFPKCl Filli
Page 3 and 4: INTRODUCTIONThis manual covers the
Page 5 and 6: iii• Symbol MarksThroughout this
Page 7 and 8: vModel PH8EFPKCl Filling type pH Se
Page 9 and 10: 1. Specification< 1. Specification
Page 11 and 12: 1. Specification > 1-31.2 Model and
Page 13 and 14: 1. Specification > 1-51.3 External
Page 15 and 16: 2. Installation > 2-12. Installatio
Page 17 and 18: 2. Installation > 2-32.2 Requiremen
Page 19 and 20: 2.2.2 Installing Sensor in PH8HS Su
Page 21: 2. Installation > 2-7Waterproof Cap
Page 25 and 26: 2.3 pH Sensor Cable Wiring Procedur
Page 27 and 28: 2. Installation > 2-13After tighten
Page 29 and 30: 3. Maintenance on operation< 3. Mai
Page 31 and 32: 3. Maintenance on operation > 3-3Wa
Page 33 and 34: CustomerMaintenanceParts ListModel
Page 35 and 36: Revision Information• Title• Ma

Model PH8EFP KCl Filling type pH Sensor - Yokogawa

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